The New York City Triathlon is one of the nations premier urban triathlons, with a course that wraps through some of the busiest streets in Manhattan. This epic race includes a 1.5k swim with the fast current in the Hudson River, a 40k ride up the traffic-free Hudson Parkway into the Bronx and back, followed by a 10k trek across 72nd St before conquering relentless hills and finishing in the heart of Central Park.General registration opened in November for 3,000 participants. This event will sell-out quickly.